diff --git a/demos/audio_content_search/conf/ws_conformer_wenetspeech_application.yaml b/demos/audio_content_search/conf/ws_conformer_wenetspeech_application.yaml
index ef1ce8d5c..7c7b1384c 100644
--- a/demos/audio_content_search/conf/ws_conformer_wenetspeech_application.yaml
+++ b/demos/audio_content_search/conf/ws_conformer_wenetspeech_application.yaml
@@ -27,7 +27,6 @@ asr_online:
     lang: 'zh'
     sample_rate: 16000
     cfg_path: 
-    decode_method: 
     force_yes: True
     device: 'cpu' # cpu or gpu:id
     decode_method: "attention_rescoring"